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CN101508340B - Wheel brake for vehicle, method of managing the power supply of an irreversible vehicle wheel brake actuator - Google Patents

Wheel brake for vehicle, method of managing the power supply of an irreversible vehicle wheel brake actuator Download PDF

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Publication number
CN101508340B
CN101508340B CN2009100067585A CN200910006758A CN101508340B CN 101508340 B CN101508340 B CN 101508340B CN 2009100067585 A CN2009100067585 A CN 2009100067585A CN 200910006758 A CN200910006758 A CN 200910006758A CN 101508340 B CN101508340 B CN 101508340B
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CN
China
Prior art keywords
actuator
electrical motor
power supply
pusher
electric power
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Application number
CN2009100067585A
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CN101508340A (en
Inventor
E·科林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Landing Systems SAS
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Messier Bugatti SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/17—Using electrical or electronic regulation means to control braking
    • B60T8/1701—Braking or traction control means specially adapted for particular types of vehicles
    • B60T8/1703—Braking or traction control means specially adapted for particular types of vehicles for aircrafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
    • B60T13/746—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive and mechanical transmission of the braking action
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C25/00—Alighting gear
    • B64C25/02—Undercarriages
    • B64C25/08—Undercarriages non-fixed, e.g. jettisonable
    • B64C25/10—Undercarriages non-fixed, e.g. jettisonable retractable, foldable, or the like
    • B64C25/18—Operating mechanisms
    • B64C25/24—Operating mechanisms electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/24—Electric or magnetic using motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
    • F16D2125/40—Screw-and-nut

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Braking Arrangements (AREA)
  • Braking Systems And Boosters (AREA)
  • Regulating Braking Force (AREA)

Abstract

The brake has a support (2) receiving a non-reversible electromechanical actuator (1) with a push rod (8). The actuator is associated to an interrupter unit that selectively interrupts an electrical power supply to an electric motor (6) i.e. high torque piezoelectric motor, to authorize the supply to the actuator in normal time, and to interrupt the supply to the actuator if a measured rotation speed (omega-mes) and a controlled speed of the motor descend below respective preset thresholds. The unit is constituted of a controlled interrupter (30), comparators (33, 34) and an AND gate (32). An independent claim is also included for a method for controlling electrical power supply to a non-reversible electromechanical actuator of a wheel brake of a vehicle i.e. aircraft.

Description

Be used for the wheel brake of transportation means and the method that the electric power supply of the irreversible actuator of the wheel brake that is used for transportation means is managed
Technical field
The present invention relates to being used for the method that the irreversible engine electric actuator of the drg of the transportation means of aircraft is particularly managed.
Background technology
The wheel brake of known aircraft comprises the supporting structure of admitting at least one electromechanical actuator, and this electromechanical actuator is equipped with movable pusher, pusher in the face of friction element with selectively to its brake activation power.In general, actuator is reversible and is equipped with barrier structure, and this barrier structure is used for stopping on the throne pusher so that pusher is executed the power-assisted while to friction element can be stopped.
Barrier structure is used to provide parking function, and this function is friction element to be applied power when cutting off electric power in that aircraft is static.For this purpose, at least one actuator work is so that its pusher applies power on friction element, and it is on the throne so that pusher is stopped to start barrier structure, and cuts off the electric power supply to the electrical motor of actuator.In fact, barrier structure is an emergency protection drg, and it unclamps pusher and when barrier structure is no longer switched on, stops pusher when barrier structure is switched on.Can break off the electric power supply of aircraft then, also Parking power can be provided even if the electrical motor of actuator and barrier structure self is no longer switched on.
Under normal circumstances, even if not braking, actuator means is also switched on, and actuator will consumed power as a result.
However, even if also have, also can start other situation of barrier structure not to the aircraft power supply.And under normal circumstances, barrier structure be energising to let pusher can move freely, possibly have above-mentioned situation when static and aviator jams on brake pedal the long duration when aircraft, the electrical motor of actuator can unnecessarily warm up.Therefore, particularly known from document FR 2 880 602: as, promptly when cutting off its electric power supply, to change the Parking pattern automatically over to when starting barrier structure.Then, the pusher of actuator is stopped on the throne, and also can cut off electric power supply subsequently the electrical motor of pusher.Under these circumstances, actuator is consumes electric power no longer, but still on friction element, keeps application force simultaneously.
Goal of the invention
The present invention wants to propose a kind of later-model electromechanical actuator drg, and it can reduce power consumption, and compares with existing actuator and not only can reduce complexity but also can reduce power consumption.
Summary of the invention
The present invention provides a kind of particularly wheel brake of the transportation means of aircraft that is used for; This drg comprises the supporting structure of admitting at least one electromechanical actuator; This actuator assemblies has the pusher in the face of friction element, this pusher under the driving action of electrical motor movably with brake activation power on friction element selectively, wherein; Actuator is irreversible, thereby the antagonistic force that is applied on the pusher can't make the electrical motor rotation; And, actuator be used for cutting off selectively apparatus associated to the electric power supply of electrical motor, these devices under normal circumstances allow to deliver power to actuator, then cut off said electric power if following situation occurs:
The actual measurement rotating speed of electrical motor drops to and is lower than first predetermined threshold; And
The instruction rotating speed of electrical motor drops to and is lower than second predetermined threshold.
Come the servocontrol actuator generally all need carry out the internal speed feedback cycle with power or with the position.Therefore; Capable of using this circulates and carries out the test of instruction speed with actual measurement speed; Instruction speed is imported as the speed on-cycle and is provided; And actual measurement speed provides as the rotation sensor measured speed, and above-mentioned rotation sensor also can find in electrical motor, is used for the electric power supply of electrical motor is controlled.Therefore motor servo control in-to-in parameter is tested, and the mode (position or power) that therefore can be independent of the servocontrol actuator is carried out these tests.
By means of these two tests, at first can guarantee to move pusher, secondly this pusher is static really, can cut off the electric power supply to actuator this moment, thus pusher keeps being blocked in the position owing to the irreversibility of actuator.
If send the order of moving pusher, just need electrical motor that one rotating speed is arranged, thereby the instruction speed signal just go back up on the dependent thresholds.The condition that is used to cut off electric power supply just no longer is satisfied, and so just forms the electric power supply to the electrical motor of actuator again.In a version, can determine to select to be different from the condition that recloses electric power supply of the condition of cutting off electric power.Specifically, surpassing its controlled velocity threshold value that just recloses electric power supply need not with to be used to cut off the used threshold value of electric power supply identical.
Description of drawings
Can understand the present invention better with reference to unique accompanying drawing, this accompanying drawing is the servocontrol figure to the dynamo-electric brake actuator that comprises electric power supply management of the present invention.
The specific embodiment
Fig. 1 illustrates the electromechanical actuator 1 that is installed on the supporting structure 2; This actuator extends in the face of friction element 3; These friction elements here are folded dishes that comprises rotor disk, they with the wheel that will brake rotate and with not with the wheel that will the brake stator discs of rotating be arranged alternately.Actuator 1 comprises body 5; Electrical motor 6 is arranged in these body 5 starts (via transmission device as shown in the figure or directly) and comes the pivotable parts of drive screw-nut connection structure 7, and wherein rotatable part can linearly move and form and be suitable for responding brake command and be pressed against the pusher 8 on the dish folded 3 selectively.
According to the present invention, actuator is irreversible type, i.e. torque actuated pusher 8 linear the moving that produce of electrical motor 6 can't make pusher 8 linear moving that electrical motors 6 are rotated but coil 3 antagonistic forces that are applied on the pusher 8.In order to make drg irreversible, can use non reversible motor 6, for example the high torque (HT) piezoelectric motors.The irreversible gear that can also be employed between electrical motor 6 and the pusher 8 is realized such irreversibility, for example adopts the driving device via the fine pitch roller-screw.
Advantageously, use a kind of like this driving device, the efficient on reverse that wherein is associated with reversible motor is very low, although non-vanishing.Therefore, for the antagonistic force that is no more than pusher to threshold value power is stopped, pusher then can inverse motion for the antagonistic force that is equal to or greater than said limit value power.Like this, actuator just as the such work of force-limiting device, is irreversible till limiting force when it is not switched on, and is exactly reversible but surpass this limiting force.
Come electrical motor 6 power supplies by changer 10; The electricity that this changer 10 is accepted from aircraft electric power network, and modulate the electric power that is delivered to electrical motor 6 according to the instruction 11 that response position set point
Figure GSB00000488083800031
produces.More precisely, with position set point
Figure GSB00000488083800032
Be delivered to the positive input of comparator 20, and estimated position signal x is accepted in the negative input of comparator 20 EstOutput from comparator 20 is the positional error ε that is transported to first controller 21 x, this first controller can be traditional mode and comprise PID (PID) stage, filter member, degree of saturation specific humidity member etc.From the output of first controller 21 is that it also is known as the instruction rotating speed for the speed setpoint
Figure GSB00000488083800041
of electrical motor 6.
To instruct rotating speed
Figure GSB00000488083800042
Be transported to the positive input of comparator 23, and the actual measurement tach signal ω from rotation sensor 24 is accepted in the negative input of comparator 23 Mes, rotation sensor 24 is arranged on the electrical motor 6 with its rotating speed of direct measurement.Should see, in this example, estimated position signal x EstBy integrator 25 based on the actual measurement rotational speed omega MesProduce.The output of comparator 23 is speed error ε ω, it is transported to second controller 26 that produces the instruction 11 that puts on changer 10.
According to the present invention, changer 10 is switched on via controlled switch 30, and this switch is a NORM CLSD so that changer 10 energisings, but in following situation, can open.The instruction 31 that is used for controlled switch 30 is applied to the AND gate 32 with following two inputs:
The actual measurement rotational speed omega that compares electrical motor 6 MesWith first threshold S 1The output of first comparator 33, if the actual measurement rotating speed is less than first threshold S 1, then this output equals 1; With
The instruction rotating speed that compares electrical motor 6
Figure GSB00000488083800043
With first threshold S 2The output of second comparator 34, if the instruction rotating speed is less than the second threshold value S 2, then this output equals 1.
Therefore, controlled switch is only just opened when either way satisfying following:
The actual measurement rotating speed is less than first threshold S 1And
The instruction rotating speed is less than the second threshold value S 2
Under these circumstances, changer 10 and therefore just no longer energising of electrical motor 6, thus electromechanical actuator 1 is with regard to because it is irreversible and stopped.These conditions are corresponding to not instructing pusher to move and the situation that pusher moves not taking place.
The electric power supply of interrupting can produce tangible energy-efficient, because actuator is no longer switched on till its work of needs.Therefore in addition, actuator does not comprise any special barrier structure, just need not to consume any electricity and pusher is remained under the driving action of electrical motor move freely.
In this example, the test that causes electric power supply to be interrupted based on internal speed on-cycle parameter.In fact, the electrical motor that is used for this application comprises tachogen, is exactly ready-made obtainable thereby make the information of relevant actual measurement rotating speed.Therefore in addition, motor speed is exactly servocontrolled usually, and is included in the internal piloting circulation, as long as the acceleration of control pusher and deceleration or its rest in the dish close velocity in last time, the instruction speed signal also is obtainable so.
Therefore, for existing actuator, no matter it is to carry out servocontrolled with position or power, all can very easily come according to the present invention the electric power supply of actuator is managed.
In known manner, comparator 33,34 can be associated with confirming circuit, and this affirmations circuit has only the enforcement when the comparator of being correlated with to remain 1 predetermined amount of time, for example several seconds the time, just has and switches to 1 corresponding output.In a version, confirm that circuit can be between AND gate 32 and controlled switch 30.So just can avoid detected according to the present invention can cause situation that electric power supply cuts off after very fast (in a period of time of for example lacking) the situation incision outage power supply of just instructing pusher to move than acknowledging time.This set can be avoided unintentionally, and the free burial ground for the destitute is worked the power components that constitutes controlled switch 30 tiredly.
In fact, under the situation of noise level of and actual measurement speed signal controlled in given pollution, used threshold value S 1And S 2Advantageously be chosen to low as far as possible.Certainly, can also filter to remove noise those signals from it.
The present invention is not limited to the foregoing description, uses equivalent manners to reproduce as above any version of concrete described key feature of the present invention and contain on the contrary.
Specifically; Although this paper statement is to cut off or connect electric power supply by means of the power switch that is arranged on the electric power supply circuit that leads to electrical motor and trip above that, other measure that also can adopt the switch that forces selectively the inverter of electrical motor power supply to get into the instruction and so on of open position to cut off selectively electric power.

Claims (2)

1. wheel brake that is used for transportation means; Said drg comprises the supporting structure (2) of admitting at least one electromechanical actuator (1); Said actuator (1) is equipped with the pusher (8) in the face of friction element (3); Said pusher (8) is movable under the driving action of electrical motor (6), and with brake activation power on said friction element selectively, said drg is characterised in that; Said actuator is irreversible, thereby the antagonistic force that is applied on the said pusher can't make said electrical motor rotation at least when said antagonistic force is lower than to threshold value power; And; Said actuator is associated with the device (30,31,32,33,34) that is used for cutting off selectively to the electric power supply of said electrical motor; The said device that cuts off selectively the electric power supply of said electrical motor under normal circumstances allows electric power is flowed to said actuator, then cuts off said electric power if following situation occurs:
Actual measurement rotating speed (the ω of said electrical motor Mes) drop to and be lower than the first predetermined threshold (S 1); And
The instruction rotating speed of said electrical motor
Figure FSB00000488083700011
Drop to and be lower than the second predetermined threshold (S 2).
2. method that the electric power supply of the irreversible engine electric actuator of the wheel brake that is used for transportation means is managed; Said electromechanical actuator is equipped with in the face of the pusher of friction element (3) (8); Said pusher (8) is movable under the driving action of electrical motor (6); To brake activation power on the said friction element, said method comprises if following situation occurs then cuts off the step to the electric power supply of said actuator with selectively:
Actual measurement rotating speed (the ω of said electrical motor Mes) drop to and be lower than the first predetermined threshold (S 1); And
The instruction rotating speed of said electrical motor
Figure FSB00000488083700012
Drop to and be lower than the second predetermined threshold (S 2).
CN2009100067585A 2008-02-14 2009-02-13 Wheel brake for vehicle, method of managing the power supply of an irreversible vehicle wheel brake actuator Active CN101508340B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0800803A FR2927594B1 (en) 2008-02-14 2008-02-14 METHOD FOR SUPPLY MANAGEMENT OF AN IRREVERSIBLE VEHICLE WHEEL BRAKE ACTUATOR
FR0800803 2008-02-14

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CN101508340A CN101508340A (en) 2009-08-19
CN101508340B true CN101508340B (en) 2012-02-01

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EP (1) EP2090480B1 (en)
JP (1) JP5129176B2 (en)
CN (1) CN101508340B (en)
AT (1) ATE530401T1 (en)
AU (1) AU2009200418B2 (en)
BR (1) BRPI0900526B1 (en)
CA (1) CA2653567C (en)
ES (1) ES2374630T3 (en)
FR (1) FR2927594B1 (en)

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FR2880602B1 (en) * 2005-01-11 2007-03-16 Messier Bugatti Sa PROTECTIVE METHOD IN A BRAKE SYSTEM OF A VEHICLE WITH ELECTRIC BRAKES
FR2898334B1 (en) * 2006-03-13 2008-06-06 Messier Bugatti Sa METHOD FOR DISTRIBUTING BRAKING BETWEEN BRAKES OF AN AIRCRAFT
KR101249367B1 (en) * 2010-07-07 2013-04-01 주식회사 만도 Control Method for Electro-Mechanical Brake System
US9039102B2 (en) * 2011-09-08 2015-05-26 Goodrich Corporation Systems and methods for emergency braking system
FR3016325B1 (en) * 2014-01-10 2016-02-12 Messier Bugatti Dowty METHOD FOR MONITORING A BLOCKING MEMBER, AND ELECTROMECHANICAL ACTUATOR
US10633824B2 (en) * 2015-04-03 2020-04-28 Volvo Construction Equipment Ab Control method for controlling a movable member of an excavator and excavator comprising a control unit implementing such a control method
EP4305653A1 (en) 2021-03-12 2024-01-17 Essex Industries, Inc. Rocker switch
EP4309200A1 (en) 2021-03-15 2024-01-24 Essex Industries, Inc. Five-position switch

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CN1781788A (en) * 2004-11-23 2006-06-07 万都株式会社 Electronic control brake system with piezoelectric actuator
WO2007120267A2 (en) * 2005-11-30 2007-10-25 Goodrich Corporation Controller for electromechanical braking system with power demand limitation and method

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FR2880855B1 (en) * 2005-01-14 2007-04-06 Messier Bugatti Sa DEVICE FOR PROTECTING AN INTEMPESTIVE BRAKING FOR AN ELECTROMECHANICAL ACTUATOR BRAKE
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CN1280085A (en) * 1999-07-08 2001-01-17 浙江亚太机电集团公司 Double-collar and shoe type hydraulic automobile brake with self-regulated gap
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CN1781788A (en) * 2004-11-23 2006-06-07 万都株式会社 Electronic control brake system with piezoelectric actuator
WO2007120267A2 (en) * 2005-11-30 2007-10-25 Goodrich Corporation Controller for electromechanical braking system with power demand limitation and method

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CN101508340A (en) 2009-08-19
JP5129176B2 (en) 2013-01-23
US8152247B2 (en) 2012-04-10
BRPI0900526A2 (en) 2009-11-17
US20090206654A1 (en) 2009-08-20
AU2009200418B2 (en) 2010-12-16
JP2009220804A (en) 2009-10-01
EP2090480A1 (en) 2009-08-19
ATE530401T1 (en) 2011-11-15
BRPI0900526B1 (en) 2020-09-29
CA2653567C (en) 2011-06-07
ES2374630T3 (en) 2012-02-20
EP2090480B1 (en) 2011-10-26
CA2653567A1 (en) 2009-08-14
FR2927594B1 (en) 2010-04-02
AU2009200418A1 (en) 2009-09-03
FR2927594A1 (en) 2009-08-21

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